Vapor electric apparatus.



C. U. BASTIAN & A. E.' SALISBURY.-

v VAPOR ELEGTBIG ABPABATUS.

APPLIUATION FILED 1116.17, 190s. .v l

BatentedApr. 5, 1910.

a SHEETS-SHEET .1.

G. 0. YBASTIAN &`A. E.. SALISBURY.

VAPOR ELECTRIC APPARATUS. APPLICATION FILED AUG. 17, Isos.

954,407, mma Apr. 5,1910.

Patented Apr 5, 1910 3 SHEETS--SHEET 3 h P 7L W ME f" C. BIAS'HAN @L A. E. SALISBURY.

` VAPOR ELECTRIC APPARATUS.

APPLICATION FILED AUG. 17, 1903. v 954,407.

CHARLES o. nAsTIAN AND ALBEpTE. sALIsBUn'Y,

To THE Gaona-HEWITT unu'rnrc COMPANY,

VAPOR ELECTRIC APPARATUS.

To all whom 'it concern:

Be it known that we, CHARLES O. BASTIAN,

electrical engineer, and ALBERT E. SALisg- V amar electrical engineer, both residi in' England, and both subjects of? #he King of Great Britain and Ireland, have invented certain newand useful Improve ments in Vapor Electric A paratus, 4of which the following is a speci cation.

the character known 'as vapor lamps or mercury vapor lamps or vapor arc lamps. This invention comprises an exhausted or any other suitable chamberfor containing mercury or other si1itable volatilizable material of suitable electrical conductivity (all of which for the sake of brevity we -wjll hereinafter refer `to Vas mercury this chamber or container being ro/vided with electrodes or contacts at the esired distance apart. The mercury in the container in suchposition therein and in suilicient quantityvto electrically connect the two'. afore. said electrodes or lamp the arrangement and operation ing such that when the current is`V` first sent through the lamp and through the mercury connecting the aforesaid electrodes or Acontacts thereby the mercury is automatically caused to recede or divided into separate bodies or caused to recede from one of the f contacts and thereby the 4mercury is vaporized and the arc is struck or luminosityp roduced and the lengthA of space isextended or prolorigedup to any lengthdesired. y Y

In the accompanying drawings we have' illustrated practical means for carrying out our present invention. such means comprismg a movable exhausted container having two electrodes or contacts spaced-apartand adapted to be connected'through a body-v of mercury, means tovtilt said movable con- -5 tailler to thereby cause the mercury to separate and strike the arc, ing up of the lamp hereinafter referred to as striking the are, electrical means o erated by the main current to move or' tilt 0 said vmovable container to thereb arc and to maintainjhe movab z'. e. effect the light,-

tainer is returned to'its normal position andy 5 the mercury flows together y again or Speclcatign of Letters Patent. n Appucaun meenam 17, isos; 'serial No. Nivea This invention relates to electric lamps yofA PATENT' onirica; l

A CORPORATION OF NEW YORK.;

Patented Apr. 5, 191.0,

*i to make connection through both'contacts .again to complete the circuit through same in readiness to strike the arc and start the `'lamp on resumption ofthe current, a concontainer'for the mercury vapor to condense therein, av chamber to receive said mercury (or a part thereof) as it condeuses, a pivoted supportor cradle rocking said movable contamer, a' lever or arm connected at one end to sai/l movable support andadapted to be operated by the solenoidvor an electro-magnet to thereby operate saidpivoted support or cradle and tilt the movable container, means to adjust and limit the extent of movement of said pivoted support and cradle and thereby limit the amount of movement contacts vfor 'starting the` the arc or luminousimparted tothe movablecontainer; and comf prlsing other details all of which will be ully described hereinafter 'and the novel features finally pointed' out in lthe claims. Referring to the accompanying drawings: Figure 1 is a vertical elevation with the case and inclosing globe shown in sec-tion of amercury vapor lamp vconstructed according to our present invention; said lalnp'being shown in position ready to start, z'. e. before the current is Aturned on. Fig. 2 is separate view'of the mechanism of the lamp removed from the case showing the position turned on andthe lamp is in operation. Fig. 1s an edge Vlew of the parts removed from strike the l container inthe tilted positinguntll' interru tion of.

its length and made of glass or'any suitable translucent material but 'for the sake of brevityjwe will hercinafterefer -to glass only such dass tube being provided at one endwith t 1e enlargement a1; or in place of sucli'enlargement-the glass"tube a may be ermtinued' at an.v angle as to allowl ythe mercury, to.recede into same when'the tube a is 1tilted into the position shown inkFig. 2. Atthe opposite end ofxsaid glass-tube a to .the-enlargement a we 'Pol'Ovidc the cross-tube a? the lower part of which `extends below or LONDON, ENGLAND, AssiGNoRs denslng chamber in one part of the movable the parts assume when the current has been the bottom level of the glass tube a and has one of the electrodes yconnected thereto rand in contact with the mercury in the bottom of said cross-tube a2 while the upper end of the latter is in connection with a condensing chamber consisting of the-glass bulb a3 of a size to presenta sulflcient radiating surface on the one hand to enable the mercury .vapor to condense sutciently rapidly and on the other handythis radiation surface must be limited to prevent the mercury -vapor condensing too rapidly to interfere with the j proper working of the lamp; and in actual practice we have found that a glass bulb such as a? and vcross-tube a2 bearing tothe glass tube a. inor about the relative sizes shown in the-drawings will give perfectly satisfactory results-or if desired the radiating chamber a3 may be lformed asa cylinder or of other suitable shape and provided with an adjustable slot or envelop byadjusting which latter more or less of` said radiating surface can be cuveredl or uncovered thus enabling the adjustment -of'the lamp to a nicety.

Inthecase illustrated the enlargement a1 at one end vof the glass tube and the condensing chamber a at the other end of the glass tube @are respectively mounted and held in metal ca s a* and ay which latter in turn are provided with lugs or inwardly turned arms a forming contacts through and by means of which said glass tube etc. is mounted in posi- `tion and the mercury therein placed in circuit-in the lamp and again readily removed as for instance said arms a* may simply rest 1n the recess formed -to recelve same between thespring clips-b1 c1 (see FigQB) on the depxendmg arms b 0, which latter are insulated om one another and to each of which one pole of the circuit is connected `as'shown in the drawings for instance. These depending arms b c are carried on the beam d pivoted at' d1 to a fixed part of the frame of the lamp beneath which pivoted beam or cradle dare arranged adjusting screws e by adjusting which latter thereby the extent of movement of the rock beam cl can be regulated.

'To this rock beam d is rigidly attached the arm f which at its upper end is linked at f1` 'to the core or armature g of the solenoid or electro-magnet la, which latter is carried on aY fixed 'part of the frame of the lamp.. For. instance as illustrated in the drawings this magnet h may be fixed Ito the rigid, bracket fi whlch .at its upper part isl attached rigidly tothe lug j on the inside of the frainek of the lamp while the. bracket i atitslowenv end is bent and-turned inwardly atti1 .and

downwardl at i to form the Asup rt'l'fol'v' the pivo screws e.

lv is bottom metal hood or k saidy bottom `plate Z beingprovided wi apl'jl Acess of mercury risin economica 11v 'ecievncy and economy with regard to cur;

which the depending arms b and c c an freely pass Without touching.

m is inclosing globe.

The rock-beam d may bev pivoted at d1 either between two adjusting screws n n asshown in `Fig. 3 or same may be pivoted and mountd in any other suitable manner.

vA spring .0J may if desired be provided on the core g in ordervto insure said core being forced out of the coil instantly the current is interrupted.

p p are terminals' of the lamp by which i same is connected up with the main circuit.

z is the mercury. The operation of the lamp is as folparts of the lam tionv shown in ig.l 1. When current `is switched on through the lamp it flows bec ltween the electrodes a: and y o cated at opposite ends of the glass tube a .through the mercury Vlocated in said glasstube a inthe position shown in Fig. 1 and at same time the coils or solenoidvh are energized and the core g thereby drawn up into said coils and thus the beam d is rocked and consequently the glass tube a tilted or moved into the position shown in Fig. 2 so that themrcury 'lows:-Before the circuit is completed the occupy the normal posi- 1s separated (at or near the point of -juno tion of the .glass tube a with the cross-tube a?) thus leaving some o fthe mercury inthe a, lower part of the cross-tubev a2 'chile the rest of the mercury recedes in the glass tube' a (into the enlargement a1y yto about the position of the me z own in Fig. 2 and thereby'the arc struck fand mercury vapor formed and the lamp continues burning and the solenoid or electro-magnet hccntinues tol hold the glass tube a in the tilted position shown in Fig. 2 as long as the current continues to flow. The mercury vapor meantime continuously condensing in the chamber a3 and the condensed mercury falls from said condensing chamber a3 toward the` bottom of the cross-tube a2 and an exin the cross-tu a.2 abovethelevel of the bottom of the Vtube a (at. yits junction with the cross-tube a?) will consequently run down the said tube a and chamber a2 toward the lchamber a2-@land join the bod of mercur at thisiend "a1 of the glass tu e ci` Sho d the current be interrupted either momentarily or otherwise vimmediatelythecurrent ceases the electro-magnet releases the core 'the beam d is rocked and the glass tube a and connecting parts 'restored tothe position shown int Fig.' .j 1 whereupon instantly'the current Hows again through kthe mercury' z between the elec- 4trodesand y. Thereuponithe lamp will*y automatically started and so on.

i By our foregoing 'invention weV are enabled to produce a. v`lamp veryfsimple and in its construction and of great "mercury vapor lampswill whereas this diiiiculty 'rent consumption as it Lis well-'known that 'roduce a very high eicienc but the di culty in Vsuch lamps hereto ore has beenV to start them:`

i of starting is overeomenb the resent invention. .f

'Whiewe v moving the vmercury container, the electromagnet, we do not wish tolimit ourselves toi this speeic means since we may employ any suitableelectrically operated means for y accomplishing the same result.

We find inl practice'that mercury vapor lamps constructed according to our present lelectro-imag'net `might with invention require considerablyA more current to start them' than lisnecessary to keep them lighted when once the mercury has been warmed u and vaporized. For example a lamp'of a out 'the actual dimensions' shown in the drawings Strikesgup-"readily with about two amperes but after about 15 seconds the currentmay be reduced to aboutV 0.6 ampere when thelamp will continue burning steadily with the latter current.

This reduction in currentafter starting may be effected inf-any wellknownA or suitableway.`

W e. mayA if desired suspendtwoor more of,y our mercury 'vapor lamps on' the rock 30 beam d' as 'shown 1n Figs'fl'fand 5 and we may connect'these lamps inseries with one another-'or in' arallel, the winding on the gein varied accordingly,

Vln coll'Stulicting t ese lam s we find that lead lass is very suitable or the lpurpose and t t pure `mercuryin theV contamer exhausted toa high degree of vacuum gives excellent results n there is no tendency for the leadglass to -melt or crack when Vthe lamp is working with .a current just sucient I the mercury vapor in a state of incandes- We do not wish to bind ourselves however to pure vn iercuryoilead glass or other details as for example impurities Iadvantage be introduced or other vqualities of glass used withoutdepart'- in Iflrom the spirit of our present invention.

are advantageously: made ofplatinum and such wiresv tainershould' always be completely covered ectrodes 'might cuny.)r:.takes placefrom one (electrode tofthef other #.(probablyyan metallicvapor as: loss'of mercury at electrolyt-icV action with the onefelectro e and fthe gain at thefther is compensated vvfor by conav shown-as the "means for and under.- these conditions' to maintain contacts or leading-in wires or both Odi '.Fr. example) f .to move the said containerv and .nected by the w firing-0fVv these lamps apparentl during the operation 'i the electrolyteA Ybut vthe densation or the overflow-ing of the mercury z from the cup at the bottom of the crosstube a2 or both.

The .enlargement al in or on or at ortoward theendof the container a. is of an internal capacity or size vsuch that it willnot quitereceive all the mercury out of the container and consequentlyit serves to limit the extent to which the mercury can be moved back or divided and thusgoverns the length of the `are or luminous space,`and this' limitation of the size of; this chamber has the further result that it also prevents the possibility of the contact in the mercury in' said chamber ever a desideratu J In a divisional application filed by us on December 14th, 1906, Serial vNumber 347,751, .claims are made upon certain features. de-

scribed herein.

Having now described' our invention what w'e c aim as new and-desirefto secure by. Letters Patent of the 'United States is lng a container for mercury, electrodes'orl contacts in. said container normally. con

nected by the mercury in said container, and' means'adapted to move the said container and mercury and-thereby strike the arc.

2. A mercury vapor apparatus, comprising a container for mercury, electrodes or becoming uncovered which is 1. A mercury vapor'apparatus, compris-'- contacts in said container normally eon- .1. nected by the mercury m said/container, and` means adapted to move said container and.

to thereby separate the mercury between said electrodes` or contacts.

3. A mercury vapor apparatus, comprisingY a container for mercury, electrodes/ or Vcontacts in said container normally -connected by the mercury'in said container, and

means adapted to move.l said containerwhereby the mercuryy 1s caused' to recede from one of said electrodes or contacts.

4. A mercury vapor apparatus,

contacts in said container normally` connected by the. mercury in 'said container, and means adapted vto, `move said container whereby the mercury 'is caused to recede from both of saidelectrodes'or contacts. or the contacts ,wlthln the con-' compris# Y mga contamer for mercury, electrodesoi',

5. A mercury vapor apparatus, comprisingla container for mercury, electrodes or contacts in "said container normally conmeans operated by Ithe main current adapted mercury vapor apparatus, the an exhausted container of mercury means autothel How ofv current mercury in said container,`and

thereby cause a separat-ion of the mercury between the .electrod f 6.11.1 Combina on' with for mercury having electrodes 'or contacts r`spaced-'aparttherein and ada ted to be connected v lso v through the apparatus adapted to move said Acontainer to cause a division of the mercury therein and thereby strike the arc and to maintain such se aration until interru tion ofthe current tailles place, substantial as and for the purposes hereinbefore descri ed. 7. In a` mercury vapor apparatus, the combination with an exhausted container for mercury, having electrodes or contacts spaced-apart therein and adapted to be connected through the said body of mercury in said container, of `a rock-beam supporting said container, an electro-magnet adapte to energized by the flow of current throu h the apparatus, means adapted to be opera ed by said electromagnet to rock said beamto move the mercury and thus strike thearc and maintain the parts iii this position until interruption of the current, s ubstantially as and for the purposes hereinbefore described.

, 8. In a mercury vapor apparatus, thecombination with an exhausted container for mercury, having electrodes or contacts spaced-a art therein and ada ted to be connected t rough the said b y of mercury in said container, of a rock-beamsup ortingvsaid container, an electro-magnet a apted to be energized by the iow of current any er t th'ppugh the ap aratus means adapted to be operated by saild electrb-magnet to rock said Abeam and. thereby tilt the .container and cause separation of the mercury and thus strike `the arc and maintain the parts in this position until interruption of the current, substantially as and for the purposes hereinbefore described. A

9. In a mercury va or ap aratus the com-v bination with an ex auste glass tube for containing1 mercury and disposed horizonereabout, of a receptacle-at one end adapted to receive the mercury from said lass tube when the latter is tilted in one irection, a condensing chamber at the opposite end `of lsaid glass tube, electrodes or contacts ada ted to be connected by the mercury in sai horizontal glass tube, movable means to support said glass tube and its connections, means to rock or tilt said' glass tube so as to move the mercury in the glass tube and thereby strike the are, and electrical means to retain said glass tube in the rocked or tilted osition after the arc has been struck unti interruption of the current, substantially as and for the purposes hereinbefore described.

10. Iii, a mercury vapor ap combination with an exhauste I aratus, *the one end adapted to receive the mercury from said glass tube, when the latter is tilted glass tube for contanin mercury and disposed hori-' zontally or `t ereabout, of a receptaclejat by the mercury in said horizontal glass tube, movable means to support said glass tube and its connections, means to rock'or tilt said glass tube so asl to cause se aration of the mercuryin the glass tube an thereby strike the arc, and electrical meansto retain said glass tube in the rocked or yt-ilted osition after the arc been struck unti interruption of the current, substantially as andfor the purposes hereinbefore described.

11. In a mercury vapor ap aratus, the combination with an exhauste glass tube for containin mercury and disposed horizontally or t ereabout, of a receptacle at one end adapted vto receive themercury from said glass tube when the latter is tilted in one direction, a condensing chamber at the opposite end of said glass tube, electrodes or contacts adapted to be connected by the mercury in said horizontal glass tube, movable means to support said glass tube and its connections forming the container for mercury, an electro-magnet energized by the main current flowing through the apparatus, mechanism o erated by saidV electro-ma et and connecte with said container to tilt thev latter and move the mercury when current flows through the -apparatus and thereby strike the arc and maintain said container in such tilted posi- .2

tion until interruption of the current, substantially as and for the purposes hereinbefore described.

12. InA a mercury .vapor apparatus comprising a container for mercury, electrodes or contacts in said container normally con,-

nected by the mercury in said container, and means adapted to move the container and mercury therein and thereby strike the arc, the combination therewith of a mercury receptacle incommunication with said container, said receptacle being of a size just suiiicient to receive that amount of mercury which is removed from the said container upon the lighting up ofthe apparatus.

13. In a mercury vapor apparatus oomprising a container for mercury, electrodes or contacts in said container ,normally connected by -tlie'mercury in said Icontainer, and means adapted vto move said container tov cause a separation' ot the mercury and thereby strike the arc, the combination there'- with of a mercury receptacle in communication with said container, ysaid receptacle being of a size just sufiicientto receive that amount of mercury which is removed from i io the said container upon the'lighting up of the ap aratus.

tainer, and means adapted to move the said container and the mercury and tliereby'strike the arc,'the combination therewith of a merprising an exhaust sufficient to i Whlchf-is'removed cury receptacle in communication with said container, said receptacle being of a size just receive v`that amount of mercuryl from the' .said containerup of the apparatus.

na mercury vapor apparatus rcomed container for mercury,

or contacts in saidl container norupon` the'lightin l,15:1 A g electrodes y'-mally connected by the mercuryin said 10 container, and means adaptedto rmove the Acontainer tovcaiise a separation ofthe mercury and 'thereby strike the arc, the combmation therewith-of a mercury receptacle in communication with said container, such receptacle being of a size just suicient to receive that amount of mercury which is removed from the said container upon the lighting up of'thevapparatus.

I In a mercury vapor apparatus comprising a container for mercury, electrodes or contacts in said container normally connected by the mercury in said container, and means adapted to move the mercury by the movement of the said container and thereby strike the arc, the combination therewithwo an enlargement at one end of said. container to form mercury which is removed from-the'con! tainer upon the lighting up of the appara# tus, substantially as set forth. f i 17. In a mercury vapor apparatus comprising a container formercury, electrodes or contacts in said container normally connected by the mercury in said container, and means adapted to move the said container to cause a separation of he mercury and thereby strike Vthe arc, the combination therewith of an enlargement at one end of said container to form a receptacle adapted Vto receive the mercury which is removed from the container upon the lighting up of the apparatus, substantiallyv asY set forth. v p

18. Ina mercury vapor apparatus comprising an exhausted container for mercury, electrodes or contactsin said container normally connected bv the mercury in said container, and mcans adapted to move the said container and the mercury therein and thereby strike the arr, the combination therewith of an enlargement at one end Yof said container to form a receptacle adapted to receivev the -mercury which is removed from thcicontainer upon the lightin up of the apparatus, substantially as set Orth.

19. In a mercury vapor apparatus comprising an exhausted container for mercury, electrodes or contacts in said container normally connected by themercury in saidA container, and meansadapted to move said container to cause a separation of themercury and thereby strike the are, the combination therewith of an enlargement at one end ot' said container to form a receptacle adapted to receivel the mercury which is a receptacle adapted to receivethe' removed from the container upon the lightpigalip` o f the y apparatus, substantially. as set Vo `Ina mercuryV vapor apparatus comprlsing a containery for mercury electrodes er contacts'in saidcontainer normally connected thermercury in said container and hmeansndapted to move the said containerand the mercury\therein\and thereby strike the arc, the combination therewith of an enlargement-at one end in said container to forma receptacle adapted to receive the mercury which is removed from the container upon the lighting up of the apparatus said receptacle being of a size limited in suchwise as to prevent the mercury7 being separated beyond a desired point accordin to the space to be rendered luminous an Y also to prevent the possibility of theon tact which is in said receptacle becoming uni covered, substantially'l asset forth.

21,. In a mercury vapor apparatus comprising a container or contacts in said containernormally conthe mercury in said container, andrmeans adaptedio move said container to cause a separationv of the mercury and therebystrike the are, the combination therewith ofen enlargement at onwnd in said container to form a receptacle adapted to receive thegmercury' which is removed fr\om the container upon the lightingpup og 'the apparatus vsaid receptacle being of a'size limitedin suchwise as to prevent. the mercury being separated beyond'a dired 1point accordin to the space to be rendered uminous an also 'to prevent the possibility of the contact which is in said receptacle be'- coming uncovered, substantially as set forth.

22.111 a merclryxvaporapparatus` comprising an exhausted container for mercury electrodes or contacts insaid container normally'connected bythe mercury in said container, and means to move the said container and the 'mercury therein and thereby strike the are, the combination therewith of an enlargement at one end in said container to form a receptacle adapted to receive the mercury which is removed from the container upon .the lighting up of the' apparatus said receptacle being of a size limited in for mercury electrodes` suchwise' as to prevent the mercury being y oint accordin separated beyond a desired luminous an to thev space to be rendere also to prevent the possibility of the contact' which is in said receptacle becoming. uncovered, substantially as set forth.

23. I prising electrodes or contacts in said container normally connected by the mercury in said con-y tainer, and means adapted to tilt saidv container to cause a separation of the mercury andthereby strike the arc, the combination therewith of an enlargement at one end m nga` mercury vapor apparatus coman exhausted container for mercury said container to form a receptacle adapted to receive the mercury which is removed from the container upon the lighting up of the apparatus said receptacle being of a size limited in suchwise as to prevent the mercury being separated beyond a desired oint according to the space to be rendered uminous and also to prevent the possibility ofthe contact which is in said receptacle 24. A mercury vapor apparatus comprising an exhausted container, electrodes therein adapted to be alternately connected and disconnected within the container by good conducting material, and electro-magnetic means adapted to move the said container and thereby initiate a flow of current through the mercury vapor.

25. A mercury vapor apparatus comprising al container for mercury, electrodes therein normall connected Within the container 'b goo conducting material, and

means a apted to move the said container and thereby initiate a flow of current through the mercury vapor.

26. In. a' mercury vapor apparatus, the combination with an exhausted container for mercury,having separated electrodes -therein' normally connected within the container by a good conducting material of electro-magnetic means automatically operated by the flow of current through the aparatus for moving said container and-initiating a flow of current through the vapor of mercury.

` Disclaimer in. Letters P atent No. 954.407.

27. In a mercury vapor arc lamp, the combination with an exhausted ,container for mercury, having electrodes or contacts spaced apart therein and adapted to be con- ELECTRIC ArrARA'rns.

A 17, 1913, by the` assignee, Enters this disclaimer- Words, to wit:

good conducting material, and

which positions it is held by giavity, current ilow for-tilting good conducting material,

becoming uncovered, substantially as set Vitnesses:

To those parts of the claims in said 9 24. A mercury va or apparatus comprising therein adapted to be a ternately connected and and automatic means adapted yto moye sai thereby initiate a iiow of current through the mercuryv v'apor.y

[OFFICIAL GAziii'rn, October 28, 1913.]

nected through the said bod of mercury in said container, of electrica means automatically operated by the iow *of current through the lamp to move said container and the mercury therein and thereby start the arc, and to maintain -such separation until interruption of the current takes place, substantially as and for the purposes hereinbefore described. 1

' 28. A mercury vapor lamp comprising a movable container for mercury, the said lamp being adapted to operate in an inclined position, and automatic means for tilting the lamp so as to make metallic connection between the electrodes.

' 29. A mercury vapor 'device comprising a movable container for mercury, electrodes therein, said container being adapted to occupy either of two ositions iny one of which positions it is held by gravity, and automatic means brought into action'by current How for tilting the device into the other position, whereby metallic connection between'the electrodes is alternately made and broken.

30. A mercury vapor apparatus comprising an exhausted container, electrodes therein adapted to be alternately connected and disconnected within the container by good conducting material, aiid automatic means adapted to move said container 'and thereby initiate a flow of current through the inercury vapor.

In witness whereof We have` hereunto set our hands in resence of two witnesses.

HAS. 0. BASTIAN. ALBERT E. SALISBURY.

HENRY BIRKBECK, FRED L. BANDS.

:DISGLAIMEBQ London, England. .VAPOR 1 Disclaimer filed October Cooper Hewitt .Electrc ompany.

specification/ which are in the following A dan exhausted container, electrodes disconnected within the container by electro-magnetic means adapted to niove the said container and thereby initiate a tlow of current` through the mercury vapor. l 29. Anfercury vapor device'compiisinga movable container for mercury, electrodes therein, said container being adapted to occupy either ot two positions in one of and automaticmeans the device into the other tion between the electrodes is alternately 30. A mercury vapor apparatus comprising an exhausted container, electrodes therein adapted to be alternately connected and disconnected Within the container by brought into .action by position, whereby metallic connecmade and broken.

d container and said container to form a receptacle adapted to receive the mercury which is removed from the container upon the lighting up of the apparatus said receptacle being of a size limited in suchwise as to prevent the mercury being separated beyond a desired oint according to the space to be rendered uminous and also to prevent the possibility ofthe contact which is in said receptacle 24. A mercury vapor apparatus comprising an exhausted container, electrodes therein adapted to be alternately connected and disconnected within the container by good conducting material, and electro-magnetic means adapted to move the said container and thereby initiate a flow of current through the mercury vapor.

25. A mercury vapor apparatus comprising al container for mercury, electrodes therein normall connected Within the container 'b goo conducting material, and

means a apted to move the said container and thereby initiate a flow of current through the mercury vapor.

26. In. a' mercury vapor apparatus, the combination with an exhausted container for mercury,having separated electrodes -therein' normally connected within the container by a good conducting material of electro-magnetic means automatically operated by the flow of current through the aparatns for moving said container and-initiating a flow of current through the vapor of mercury.

` Disclaimer in. Letters P atent No. 954.407.

27. In a mercury vapor arc lamp, the combination with an exhausted ,container for mercury, having electrodes or contacts spaced apart therein and adapted to be con- ELECTRIC ArrARA'rns.

A 17, 1913, by the` assignee, Enters this disclaimer- Words, to wit:

good conducting material, and

which positions it is held by giavity, current ilow for-tilting good conducting material,

becoming uncovered, substantially as set nected through the said bod in said container, of electrica means automatically operated by the iow *of current through the lamp to move said container and the mercury therein and thereby start the arc, and to maintain -such separation until interruption of the current takes place, substantially as and for the purposes hereinbefore described. 1

' 28. A mercury vapor lamp comprising a movable container for mercury, the said lamp being adapted to operate in an inclined position, and automatic means for tilting the lamp so as to make metallic connection between the electrodes.

' 29. A mercury vapor 'device comprising a movable container for mercury, electrodes therein, said container being adapted to occupy either of two ositions iny one of which positions it is held by gravity, and automatic means brought into action'by current How for tilting the device into the other position, whereby metallic connection bebroken.

30. A mercury vapor apparatus comprising an exhausted container, electrodes therein adapted to be alternately connected and disconnected within the container by good conducting material, and automatic means adapted to move said container 'and thereby initiate a flow of current through the inercury vapor.

In witness whereof We have` hereunto set our hands in resence of two witnesses.

HAS. O. BASTIAN. ALBERT E. SALISBURY. lVitnesses: f

To those parts of the claims in said 9 24. A mercury va or apparatus comprising therein adapted to be a ternately connected and tion between the electrodes is alternately 30. A mercury vapor apparatus comprising an exhausted container, electrodes therein adapted to be alternately connected and disconnected Within the container by and automatic means adapted yto move sai thereby initiate a iiow of current through the mercuryv vapor."-

[OFricniL Gaziirrn, October 28, 1913.]

HENRY BIRKBECK, FRED L. BANDS.

:DISGLAIMEBQ Obarles O. Baslica and Albert E. Salisbury,

Patentl dated April '5, 1910.

London, England. .VAPOR 1 Disclaimer filed October Cooper Hewitt .Electrc ompany.

specification/ which are in the following A dan exhausted container, electrodes disconnected within the container by electro-magnetic means adapted to niove the said container and thereby initiate a tlow of curi'ent` through the mercury vapor. l

29. Anfercury vapor device'compiisinga movable container for mercury, electrodes therein, said container being adapted to occupy either ot two positions in one of and automaticmeans the device into the other brought into .action by position, whereby metallic connecmade and broken.

d container and of mercury tween'the electrodes is alternately made and Disclaimer in Letters Patent No. 954.407.

DISCLAIMER- 954,407.1--0/1ares O. Basz'an and Alberi E. Salisbury, London, England. VAPor ELECTRIC APPARATUS. Patent dated April 5, 1910. Disclaimer tiled October y 17, 1913, by the assignee, Cooper Hewitt' Electric Compmzy. Enters this disclaimer* To those parts of the claims in said specification, which are in the following words, to wit: i

24. A mercury vapor apparatus comprising an exhausted container, electrodes `therein adapted to be alternately connected and disconnected within the container by good conducting material, and electro-magnetic means adapted to move the said container and thereby initiate a How of current through the mercury vapor.

29. Anereury vaporde vice iizomprising:r a movable container for mercury, electrodes therein, said container being adapted to occupy either of two positions` in one of i which positions it is held by gravity. and automatic means brought into action hy current flow fortilting the device into the other position, wherebiY metallic connec` tion between the electrodes is alternately made and broken.

30. A mercury vapor apparatus comprisingr an exhausted container, electrodes therein adapted to be alternately connected and disconnected within the container by good conducting material, and automatic means adapted to more said container and thereby initiate :i How of current through the mercury vapor."

FOFFICIAL GAzErrE, ctober 28, 1.913.] 

